kern/161968: [zfs] [hang] renaming snapshot with -r including a zvol snapshot causes total ZFS freeze/lockup

[Peter Maloney]

The following reply was made to PR kern/161968; it has been noted by GNATS.

From: Peter Maloney <peter.maloney at brockmann-consult.de>
To: bug-followup at FreeBSD.org, peter.maloney at brockmann-consult.de
Cc:  
Subject: Re: kern/161968: [zfs] [hang] renaming snapshot with -r including
 a zvol snapshot causes total ZFS freeze/lockup
Date: Fri, 10 Feb 2012 12:11:41 +0100

 I tested this again using 8-STABLE (csup'd on 2012-01-04):
 
 FreeBSD bczfsvm1.bc.local 8.2-STABLE-20120104 FreeBSD
 8.2-STABLE-20120104 #0: Mon Feb  6 12:10:32 UTC 2012    
 root at bczfsvm1.bc.local:/usr/obj/usr/src/sys/GENERIC  amd64
 
 on hardware:
 
 DELL PowerEdge 2850  - tested with a zfs stripe, raidz1, and raidz2
 and a SuperMicro dual xeon system - tested with a zfs mirror
 
 And it didn't hang.
 
 Now there are just brief pauses every 3-5 loops (instead of hangs?).
 
 So if someone tests this in 9.0-STABLE and finds that it doesn't hang,
 this PR should be closed.
 
 -- 
 
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 Peter Maloney
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